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A method for representing the three-dimensional radiation patterns of instruments/performers within artificial reverberation using multichannel direct sound files convolved with channel-based spatial room impulse responses (SRIRs) is presented. Two reverb conditions are studied in a controlled listening test: a) all SRIR channel positions are convolved with a single monophonic direct sound file, and b) each SRIR channel position is convolved with a unique direct sound file taken from a microphone array surrounding the performer. Participants were asked to adjust the level of each reverberation condition (relative to a fixed direct sound stream) to three perceptual thresholds relating to source- and room- impression. Results of separate three-way within-subject ANOVAs and post-hoc analysis show significant interactions between instrument / room type, and instrument / reverb condition on each of the three thresholds. Most notably, reverb condition b) required less level than condition a) to yield perceptual equivalency between source- and room- impression, suggesting that the inclusion of multichannel direct sound in SRIR convolution may increase the salience of room impression in the immersive reproduction of acoustic music.
Author (s): Kelly, Jack; Woszczyk, Wieslaw; King, Richard
Affiliation:
McGill University, Montreal QC, Canada; The Centre for Interdisciplinary Research in Music Media and Technology, Montreal, QC, Canada
(See document for exact affiliation information.)
AES Convention: 151
Paper Number:10532
Publication Date:
2021-10-06
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Session subject:
Evaluation of spatial audio
Permalink: https://aes2.org/publications/elibrary-page/?id=21496
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Kelly, Jack; Woszczyk, Wieslaw; King, Richard; 2021; 3D Impulse Response Convolution with Multichannel Direct Sound: Assessing Perceptual Equivalency between Room- and Source- Impression for Music Production [PDF]; McGill University, Montreal QC, Canada; The Centre for Interdisciplinary Research in Music Media and Technology, Montreal, QC, Canada; Paper 10532; Available from: https://aes2.org/publications/elibrary-page/?id=21496
Kelly, Jack; Woszczyk, Wieslaw; King, Richard; 3D Impulse Response Convolution with Multichannel Direct Sound: Assessing Perceptual Equivalency between Room- and Source- Impression for Music Production [PDF]; McGill University, Montreal QC, Canada; The Centre for Interdisciplinary Research in Music Media and Technology, Montreal, QC, Canada; Paper 10532; 2021 Available: https://aes2.org/publications/elibrary-page/?id=21496
@article{kelly20213d,
author={kelly jack and woszczyk wieslaw and king richard},
journal={journal of the audio engineering society},
title={3d impulse response convolution with multichannel direct sound: assessing perceptual equivalency between room- and source- impression for music production},
year={2021},
number={10532},
month={october},}
TY – paper
TI – 3D Impulse Response Convolution with Multichannel Direct Sound: Assessing Perceptual Equivalency between Room- and Source- Impression for Music Production
AU – Kelly, Jack
AU – Woszczyk, Wieslaw
AU – King, Richard
PY – 2021
JO – Journal of the Audio Engineering Society
VL – 10532
Y1 – October 2021